Match each subunit with the molecule in the key. a. fat b. polysaccharide c. polypeptide d. DNA,

step 1 So here, C is the correct answer because a polypeptide is formed by amino acids. And A is wrong

Match each subunit with the molecule in the key. a. fat b....

Key Concepts

Lipids

Lipids, such as fats, are diverse molecules that generally function as energy stores and structural components of cell membranes. Although not polymers in the classical sense, fats are constructed from fatty acids and glycerol, and their hydrophobic nature plays an important role in cellular organization and signaling.

Nucleic Acids

Nucleic acids, including DNA and RNA, are essential macromolecules responsible for storing and transferring genetic information. They are polymers made up of nucleotide monomers, and the sequence of these nucleotides encodes the information necessary for the synthesis of proteins and the regulation of cellular functions.

Carbohydrates

Carbohydrates are energy-providing macromolecules formed by the polymerization of monosaccharides into complex structures like polysaccharides. They serve as vital energy sources and structural components in cells, and their properties are determined by the types and arrangements of the sugar monomers that compose them.

Monomers

Monomers are the basic building blocks that join together to form macromolecules. Each type of macromolecule is composed of a specific kind of monomer: amino acids form proteins, monosaccharides form polysaccharides, fatty acids (together with glycerol) constitute fats, and nucleotides form nucleic acids. Recognizing these relationships is key to understanding how complex biological structures are assembled.

Macromolecules

Macromolecules are large, complex molecules that play critical structural and functional roles in living organisms. They are typically polymers made up of smaller subunits called monomers, and include proteins, carbohydrates, lipids, and nucleic acids. Understanding their composition and structure is fundamental to the study of molecular biology and biochemistry.

Proteins

Proteins are large, functional molecules made by linking amino acids in a specific sequence to form polypeptides. The sequence of amino acids determines the protein's structure and function in the cell, making proteins essential for catalyzing biochemical reactions, maintaining cellular structure, and regulating various physiological processes.

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